The dual 3.5" floppy is something I cobbled together myself. I had detailed its making on the old CoCo site which inexplicably disappeared one night. Like I expect this site to do any day now .

The bigger board in the background does the conversion form the CoCo hi-res video(CGA?) to VGA. There must be a better solution than this(a GBS 8200 V4) these days and if so I would appreciate hearing about it. The little dongle board is an RS2323 to USB adapter for drivewire.